TB 9-6625-086-35
(6) Position the controls of the power meter calibrator as follows:
(a) RANGE (MW) switch to .01.
(b) FUNCTION switch to CAL.
NOTE
After each change in position of TI RANGE switch, turn the
FUNCTION switch of power meter calibrator to the CURRENT
OFF position and adjust the TI zero controls for a zero
indication.
(7) Turn the TI and power meter calibrator RANGE switches to the settings listed
in table 4. If the indications are not within limits specified, perform b below.
Table 4. Range and Trucking Performance Check (with Power Meter Calibrator)
Test Instrument Indications (mw)
Power Meter
(Readings for Model 431B
Adjustments for Model
Test Instrument
Calibrator
are in parenthesis)
431C (fig. 3)
RANGE switch
RANGE (MW)
Min
Max
200-Ohm
100-Ohm
settings
switch settings
Mount
Mount
.01
.01
0.0098
0.0102
R14
R1
(0.0097)
(0.0103)
.03
.03
0.0295
0.0305
R13
R2
(0.0291)
(0.0309)
.1
.1
0.099
0.101
R12
R3
(0.097)
(0.103)
.3
.3
0.297
0.303
R11
R4
(0.291)
(0.309)
1
1
0.990
1.010
R10
R5
(0.970)
(1.030)
3
3
2.970
3.030
R9
R6
(2.910)
(3.090)
10
10
9.900
10.100
R8
R7
(9.700)
(10.300)
101
8
7.9
8.1
(7.7)
(8.3)
10
6
5.9
6.1
(5.7)
(6.3)
10
4
3.9
4.1
(3.7)
(4.3)
10
2
1.9
2.1
(1.7)
(2.3)
8
